Design patterns implemented in Java

All Algorithms implemented in Java

Google core libraries for Java

A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.

Getting Started with Spring Boot 3:

ZXing ("Zebra Crossing") barcode scanning library for Java, Android

Apache Flink

OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

JDK main-line development https://openjdk.org/projects/jdk

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

A fast dependency injector for Android and Java.

An Android library for managing images and the memory they use.

Modular and customizable Material Design UI components for Android

Apache Hadoop

Vert.x is a tool-kit for building reactive applications on the JVM

Your Cheat Sheet For Android Interview - Android Interview Questions and Answers

jsoup: the Java HTML parser, built for HTML editing, cleaning, scraping, and XSS safety.

Fast Android Development. Easy maintainance.

Android runtime permissions powered by RxJava2

Views and Drawable for displaying animated GIFs on Android

Test Automation Made Simple

Catch common Java mistakes as compile-time errors

Generate Java types from JSON or JSON Schema and annotate those types for data-binding with Jackson, Gson, etc

From Java To Kotlin - Your Cheat Sheet For Java To Kotlin

configuration library for JVM languages using HOCON files

Reformats Java source code to comply with Google Java Style.

Android Unit Testing Framework

A Model-View-Presenter / Model-View-Intent library for modern Android apps

A RecyclerView that implements pullrefresh and loadingmore featrues.you can use it like a standard RecyclerView

A diagram of the Android Activity / Fragment lifecycle